2 —  Part numbers, ordering, and deployment configuration overview
2-16 March 2011 Alcatel-Lucent 7330/7302 ISAM FTTN R04.02.42a
ONT Product Information Guide Edition 01 3FE 54199 AAAA TCZZA
Figure 2-1  Fiber distribution network
Line rate supported
Systems support standard-based GPON line rates of 2.488 Gb/s downstream and 
1.244 Gb/s upstream between the packet optical line termination (P-OLT) units and 
optical network terminals (ONTs) based on the ITU-T G.984 protocol. The optical 
budget of the GPON connection is typically 28 dB.
Typical optical fiber outside plant architecture
The outside plant consists of optical fiber cables, splicing enclosures, fiber 
distribution cabinets or enclosures, and drop boxes. The outside plant can be 
implemented using different architectures. The specific architecture can greatly 
affect the cost of deployment.
ONTs End userNetwork Central office or
remote terminal
Passive
outside
plan
Fiber
distribution
1,490 nm
1,550 nm
1,310 nm
2.4 Gb/s
1.2 Gb/s
19684
1,550 nm
EMS/NMS
WDM
V-OLT/EDFA
Optional RF
overlay
PSTN
SoftswitchClass 5
switch
Voice 
gateway
P-OLT
MDU
Edge switch
router
Ethernet
Internet
IPTV
RF Video
provider
network
1
The maximum optical link length depends on the specific equipment and deployment conditions
1
Optical link length